Comparsions
1. Unbelievable Image Optimizer vs. JPEGmini
♥ Price
JPEGmini is $59,
Unbelievable Image Optimizer is only $4.99 in vigorous a promotion.
♥ Compression ratio
JPEGmini is 4.3x,
Unbelievable Image Optimizer is 7x.
Details of the test.
♥ Feature:
JPEGmini: Only jpg and heic can be compressed.
Unbelievable Image Optimizer: can compress jpg, jpeg, png, gif, pcx, bmp and supports transparent png.
Unbelievable Image Optimizer can output jpeg2000, which can provide higher compression than jpg.
2. Compression ratio comparison
Test image: original size 624 KB
Image optimizer ORIGINAL size optimized size compression
Unbelievable Image Optimizer 624 KB 89 KB 7.0x
kraken.io 624 KB 252 KB 2.5x
JPEGmini 624 KB 144 KB 4.3x
TinyPNG,TinyJPG 624 KB 149 KB 4.2x
optimizer size compression
Unbelievable 89 KB 7.0x
kraken.io 252 KB 2.5x
JPEGmini 144 KB 4.3x
TinyPNG 149 KB 4.2x
3. Compression speed
Because only Unbelievable Image Optimizer and JPEGmini are local batch compression, the others are online compression, Unbelievable Image Optimizer and JPEGmini are very fast, and the other speeds are obviously slow.
Unbelievable Image Optimizer is the only batch processing, high-compression, high-speed, reliable, cheap software.
